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From: Ian Campbell <Ian.Campbell@citrix.com>
To: Julien Grall <julien.grall@linaro.org>
Cc: xen-devel@lists.xenproject.org, Vijaya.Kumar@caviumnetworks.com,
	tim@xen.org, stefano.stabellini@citrix.com
Subject: Re: [PATCH v2 11/15] xen/arm: vgic-v2: Correctly handle RAZ/WI registers
Date: Mon, 2 Feb 2015 16:50:51 +0000	[thread overview]
Message-ID: <1422895851.5838.34.camel@citrix.com> (raw)
In-Reply-To: <54CFA774.3010904@linaro.org>

On Mon, 2015-02-02 at 16:36 +0000, Julien Grall wrote:
> Hi Ian,
> 
> On 02/02/15 16:02, Ian Campbell wrote:
> > On Thu, 2015-01-29 at 18:25 +0000, Julien Grall wrote:
> >> Some of the registers are accessible via multiple size (see GICD_IPRIORITYR*).
> > 
> > They are byte accessible, but are they half word accessible? I suspect
> > not.
> 
> Only byte accessible.

I think we might need a read_as_zero_8_32 then, i.e. explicitly list the
sizes which are allowed, and perhaps omit the un-suffixed version for so
it's clear exactly what is what, although that might be more churn than
you want to have here.

Ian.

  reply	other threads:[~2015-02-02 16:50 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-29 18:25 [PATCH v2 00/15] xen/arm: Bug fixes for the vGIC Julien Grall
2015-01-29 18:25 ` [PATCH v2 01/15] xen/arm: vgic-v3: Correctly set GICD_TYPER.IDbits Julien Grall
2015-02-02 15:15   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 02/15] xen/arm: vgic-v3: Correctly set GICD_TYPER.CPUNumber Julien Grall
2015-01-29 18:25 ` [PATCH v2 03/15] xen/arm: vgic-v3: Correctly handle GICD_CTLR Julien Grall
2015-02-02 15:18   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 04/15] xen/arm: vgic-v3: Correctly handle RAZ/WI registers Julien Grall
2015-02-02 15:24   ` Ian Campbell
2015-02-02 15:59     ` Julien Grall
2015-02-02 16:08       ` Ian Campbell
2015-02-02 16:11         ` Julien Grall
2015-02-03 13:37           ` Julien Grall
2015-02-02 15:27   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 05/15] xen/arm: vgic-v3: Correctly implement read into GICR_NSACR Julien Grall
2015-02-02 15:35   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 06/15] xen/arm: vgic-v3: Set stride during domain initialization Julien Grall
2015-02-02 15:40   ` Ian Campbell
2015-02-02 16:14     ` Julien Grall
2015-01-29 18:25 ` [PATCH v2 07/15] xen/arm: vgic-v3: Use a struct to describe contiguous rdist regions Julien Grall
2015-02-02 15:47   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 08/15] xen/arm: vgic-v3: Emulate correctly the re-distributor Julien Grall
2015-02-02 15:59   ` Ian Campbell
2015-02-02 16:33     ` Julien Grall
2015-02-02 16:47       ` Ian Campbell
2015-02-02 17:05         ` Julien Grall
2015-02-02 17:38           ` Ian Campbell
2015-02-03 13:13             ` Julien Grall
2015-02-03 13:37               ` Ian Campbell
2015-02-03  6:47   ` Vijay Kilari
2015-02-03 13:09     ` Julien Grall
2015-01-29 18:25 ` [PATCH v2 09/15] xen/arm: vgic-v3: Clarify which distributor is used in the common emulation Julien Grall
2015-02-02 16:00   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 10/15] xen/arm: vgic-v2: Correctly set GICD_TYPER.CPUNumber Julien Grall
2015-01-29 18:25 ` [PATCH v2 11/15] xen/arm: vgic-v2: Correctly handle RAZ/WI registers Julien Grall
2015-02-02 16:02   ` Ian Campbell
2015-02-02 16:36     ` Julien Grall
2015-02-02 16:50       ` Ian Campbell [this message]
2015-02-02 17:08         ` Julien Grall
2015-02-02 17:41           ` Ian Campbell
2015-02-03 13:14             ` Julien Grall
2015-02-03 13:29               ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 12/15] xen/arm: vgic-v2: Take the lock when writing into GICD_CTLR Julien Grall
2015-01-29 18:25 ` [PATCH v2 13/15] xen/arm: vgic-v2: GICD_I{S, C}PENDR* are only word-accessible Julien Grall
2015-02-02 16:03   ` Ian Campbell
2015-01-29 18:25 ` [PATCH v2 14/15] xen/arm: vgic: Drop iactive, ipend, pendsgi field Julien Grall
2015-02-02 16:05   ` Ian Campbell
2015-02-03 13:17     ` Julien Grall
2015-03-09 18:14     ` Stefano Stabellini
2015-01-29 18:25 ` [PATCH v2 15/15] xen/arm: gic-v3: Update some comments in the code Julien Grall
2015-02-02 16:05   ` Ian Campbell
2015-02-02 16:37     ` Julien Grall
2015-02-02 16:48       ` Ian Campbell

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